Hello,I have just "fired up" my new Vermont castings coal stove and everything is fine except....I get a whistling noise around where the pipe goes into the rear exit of the stove. The pipe is in as far as it can go into the stove exit.I did not have this noise with my vermont casting wood stove. Can I pull out the stove, put some stove cement in the exit, and then slide the pipe back into the back of the stove to stop this problem?I am up for any solution(s) that will stop this noise.